Raymarine FishFinder L265 User Manual download pdf (Page 67)

transducer and cable should be replaced as a unit. Contact

Raymarine for instructions.

The display unit does not see the bottom or fish –

1. Be sure the display unit is not using the Simulation mode. (If this is

the case, the word “Simulation” will flash on the display.)

2. On a unit with the transom-mount transducer, the transducer may

have “kicked up” because it hit an obstruction. See Fig. 2-4. Move

the transducer down into the working position.

3. The unit may be set for Manual sensitivity, and be using a very low

sensitivity

setting. To reset all of the values to the factory defaults, turn

on the unit by pressing the

PWR

and

CLEAR

buttons at the same time.

See the default settings on page 59.

4. The transducer may not be vertical. Be sure that the transducer is

aiming straight down, or within 10° of vertical.

5. If the transducer is an in-hull type, be sure that it is installed correctly.

The transducer should be “looking” through just one layer of fiber-

glass hull material, no more than 1" (25 mm) thick. The transducer

should be firmly attached to the hull using the correct type of adhe-

sive/sealant.

6. The face of the transducer may be covered or fouled. Use a stiff

brush to clean it. You may also sand the surface with a fine-grit wet

or dry sandpaper (#320 grade or finer), but this will affect the perfor-

mance of the unit when the boat is moving at higher speeds.

7. If the FishFinder is using the Auto Sensitivity setting, it may be

reacting to an increase in electrical “noise.” As the level of noise

increases, the sensitivity automatically adjusts, and the unit can lose

its ability to see the bottom or fish. Check for problems with the wiring

as described in the section on “Display unit freezes.”

8. The voltage from the power source may be low. This affects the

transmitting power of the FishFinder. Check the connections as

described in the section on “The display unit freezes.”

The FishFinder does not display fish arches –

1. Be sure the Fish Symbol feature is turned off. See the instructions for

the System Setup display.

2. The FishFinder will not display arches unless the boat is moving. If

the boat is stopped, fish will appear on the display as straight lines.

Maintenance and Troubleshooting

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Raymarine FishFinder L265 User Manual Page 67